Self-discharging car



W. WINTER AND G. IMMAND.

SELF DISCHARGINGI CAR. APPLICATION FILED MAR. 28, 1921.

1,429,056, rmm ease n 12,1922,

Patented Sept. 12, 1922 WILHELM -WINTER AND GEBHARD 'IMMAND, OFES'SEN, G R ANY, ASS

, I 1,429,056 uNirEo iS TATES PATENT OFFICE.

rations TO FRIED. KRUPIP AK'IIENGESELLSCHAFT,Q SS N 'T -BUHR, GERMANY.

SELF-DISCHARGING can.

a bnauon filed'liarch 28, 1921. Serial No.=456,371.

To all whom it may concern:

Be it known that we, WILHELM WINTER, residing at Essen, Germany, and -GERHARD IM AND, residing at Essen,.Germany, both citizens of the Republic of Germany, have invented a certain new and useful Improvement in Self-Discharging;Cars, of= which the followingis a specification. i

This invention relates to self-discharging cars provided with a discharging flap-which opens automatically under the action of the weight of the load and also-under the action of its own weight. The object of theinvention is to vprotect in av simple manner the discharging flap, when in the closed position as well as in an openposition, from any unintentional movement.

Theinvention will be described with ref erence to the accompanying drawing which illustrates one embodiment .ofvthe subject matter of the invention and inwhich Fig. 1 shows an end view of the self-discharging car in the closed position,

' Fig. 2 is a similar view of the car withthe doors or flaps in the openpo'sition. Figs. 3 to 5 show, in similar views, several details of the car indiflerentpositions and on a larger scale. q I

A denotes the, saddle-shaped bottom; rigidl connected to the under-frame of the car, X are the end walls, likewiserigidly con nected to the underframe, and B denotes the side wallsv which, areswingin'gly suspended on the end, walls and form. each a dison the middle'portion ofeachTend wall A there is mounted a two-armed lever, one arm of whichfis denoted by C .andthe other by C. ThearmsC and C are connected to the side walls B by means of rods D. Each arm C ot the twoarmlevers (3 C (the one ofwhich coveringthe other in the drawing) forms together wlth a crank arm E mounted onthe underframe, and with a coupling rod Fconnecting the crank arm E to the arm CH The coupling rod F has a slot into which engages the crank tap connecting the rod)? with the crank arm-C so that the latter can turn through an angle corresponding to .the-

length of the slot independently of the crank arm E or of a mutual turning movement of the arts E and F. I

hen the-side walls forming thedischarging flaps of thelcar, are in the closed position,(see Figrl the crank arm E, which along its longitudinal arm E which force tends to rotate this crank carr es a weight, 6 disposed. on one side thereofyassumes an angular position, in

wh ch it has passed beyond its. deadposition by a small angle lnfthedi'rection' opposite to the .arrow w- (see Fig 3) and bears, by means of a bolt mounted on one sidethereo'f, against the couplingrod F in'such a manner that 1t s prevented from further rotation in the direction opposite to the arrow 00. The bolte is then held in looking relationship with-trespect to the coupling rod F; At the same time the tap c ofthe crank arm C bearsagainst the coupling rod F on the inner .end of the slot. w a I t In order torotatethe shaft on which the crank arms E- are mounted, a hand .leverI-I (shown in Fig. 5) is f provided which/can freely rotate, -,-in the vwell :known' jrmanner, wlthin convenient limits with respect to the crank shaft and-which can couple itself to the crank shaftiinthe desired direction fiapswhich forces are transferred, through the intermediary of the rods .D, to'each'of the two-armed levels 00 in such a manner' that the tap a? bears with pressure against the. coupling rod F' (see also Fig. 3). Gorisequently, the couplin rod F exerts a'force, irection, on the crank arm in a direction opposite-to the arrow Thisrotation is, however, prevented b the tap a abutting on the coupling rod F i the flapsB, therefore, are secured in their closed" position in a self-locking manner under the pressure of the1oad.

When the car is to be discharged, ,theicrank arms E are turned, bymeans of the j above mentioned hand lever, in the direction of the arrow w. When-this takes'place'the bolts 6 v are lifted ffrom their" respectiveconpling rods F and the two-armed'levers C C execute, after aivery small clockwisemovement,

a rotation in thecounter-clockwise direction.

As soon as the crank arms E havepassed beyondtheir dead positions by a small amount, they continue to rotate inthe direction of. the arrow w, under the'action of the forces produced by the load and'independently. of the hand lever; zrThen, the rodsC' C fcon-' tinuing their rotation, in the counter-clockwise dir'ectiomithe crank arms E .:reach their position of reverse (see Fig. 4) and change their direction of rotation. Finally, after having passed through their other dead position under the swing effect of the weights 6 the crank arms E assume the angular position shown in Figs 2 and 5, where the bolts 6 again bear against the coupling rods F and limit the rotation of the crank arms. After the crank arms E have reached this other dead position, the flaps B swing still further by an amount corresponding to the length of the slots of the coupling rods F in the opening direction and then they return into the position shown in Fig 2 under the action of their own weight, in which position the taps c of the levers C C (see particularly Fig. 5) rest again on the coupling rods F at the inner end'of the slots. In this position the tap 0 exerts, under the action of the weight of the flaps B, a force upon the-coupling rods E which coincides with the longitudinal direction of these rods and is transferred in the same direction as the crank E and tends to rotate the latter further in the direction opposite to the arrow or into its other position of reverse. Since this further rotation of the crank E is'prevented bythe bolt a resting on the coupling rod F, the flapsB are fixed,in an opening position also, in .a self-locking manner under the action of their own weight. As it' results from the foregoing, owing to the presence of the slots within the coupling rods F, the positive connection between the levers C C and the crank arms E is interrupted for a short time after these latter have attained their other dead position and, consequetnly the crank arms E are able to pass with certainty automaticaly beyond their dead positions under the swing action of the weights 6 In order to return the flaps B into the closed position the crank arms'E are turned back, by means of the above mentioned hand lever, from the position shown in Figs. 2 and 5in the direction of the arrow 00. hen this .takes place, the bolts 6 are lifted from the coupling rods F and the levers C C execute, after a very small rotation in the counter-clockwisedirection, a clockwise rotation. As soon as the crank arms E have passed beyond their dead position; bya small amount, they continue to rotate, under the action of the weight of the flaps B, in the direction of the arrow 00 independently of the hand lever until they have reached again their position of reverse shown in Fig. 4. From this position the crank arms E move beyond their first dead position again into the original position shown in Figs. 1 and 3, while the flaps B continue to approach to their closed position'under the action of their own weight. In this case also the automatic passage beyond thedead position is secured by the swing effect of the weights 6 which maintain at the same time connection between the coupling rods F and the taps c on the inner end of theslots of the coupling rods F during the backward rotation of the crank arms E. We claim:

1. In combination with a car body having hinged flaps, a toggle joint means for controlling the simultaneous opening of sald flaps, means to give to said first named means a locked position past the dead center ofsaid toggle, said toggle joint means comprising a lost motion connection for releasing the lock of said toggle withoutthereby giving the said flaps an oscillatory movement.

2. In combination with a car body having hinged flaps, a toggle joint means for controlling the simultaneous opening of said flaps, means to give to said first named means a locked position past the dead center of said toggle, said toggle joint means comprislng a lost motion connection for releasing the lock of said toggle without thereby giving to said flaps an oscillatory movement, and an energy storage means operated by said toggle joint means to aid in the unlocking movement of said connecion.

8. In combination with means for openng and closing a flap or the like, a toggle oint, said opening means connected to one end of said toggle joint by virtue of a loose connection, said toggle having its members so arranged to permit of a movement past the dead center line thereof, and further means to limit said movement past said dead center line.

4. In combination with means for openng and closing a flap or the like, a toggle joint, said opening means connected to one end of said toggle joint by virtue of a loose connection, said toggle having its members so arranged as to permit of a movement past the dead center line thereof, and further means to limit said movement past said dead center line, and still further means comprising an energy storing means for aiding said movement of the toggle past its dead center line position.

5. A saddle-bottomed dumping car having flap sides and comprising means for opening and closing a flap or the like, a toggle joint, said opening means connected to one end of said toggle joint by virtue of a loose connection, said toggle having its members so arranged to permit of a movement past the dead center line thereof, and further means to limit said movement past said dead center line.

6. A saddle-bottomed dumping car having flap sides and comprising means for opening and closing a flap or the like, a toggle joint, said opening means connected to one end of said toggle joint by virtue of eza a loose connection, said toggle having its members 50 arranged to permit of a movement past the dead center line thereof, and further means to limit said movement past said dead center line, and still further means comprising an energy storing means for aiding said movement of the toggle past its dead center line position.

The foregoing specification, signed at Essen, Germany, this 17th day of Febru- 10 ary, 1921. r

- WILHELM WINTER. GERH. IMMAND. In presence of- I i HANS GOTTSMANN, CARL MUEILER' 

